Vulnerabilities > CVE-2013-4466 - Improper Restriction of Operations Within the Bounds of A Memory Buffer vulnerability in GNU Gnutls
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
NONE Integrity impact
NONE Availability impact
PARTIAL Summary
Buffer overflow in the dane_query_tlsa function in the DANE library (libdane) in GnuTLS 3.1.x before 3.1.15 and 3.2.x before 3.2.5 allows remote servers to cause a denial of service (memory corruption) via a response with more than four DANE entries.
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| Application | Gnu
| 20 |
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Buffer Overflow via Environment Variables This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
- Overflow Buffers Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
- Client-side Injection-induced Buffer Overflow This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service.
- Filter Failure through Buffer Overflow In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).
- MIME Conversion An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.
Nessus
NASL family Fedora Local Security Checks NASL id FEDORA_2013-20628.NASL description Minor security update from upstream. New minor upstream release fixing a security issue. Adds ECC NIST Suite B curves support (ECDH, ECDSA) Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-03-17 modified 2013-11-18 plugin id 70939 published 2013-11-18 reporter This script is Copyright (C) 2013-2020 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/70939 title Fedora 19 : gnutls-3.1.16-1.fc19 (2013-20628) NASL family FreeBSD Local Security Checks NASL id FREEBSD_PKG_9065B9303D8B11E3BD1AE840F2096BD0.NASL description Salvatore Bonaccorso reports : This vulnerability affects the DANE library of gnutls 3.1.x and gnutls 3.2.x. A server that returns more 4 DANE entries could corrupt the memory of a requesting client. last seen 2020-06-01 modified 2020-06-02 plugin id 70646 published 2013-10-27 reporter This script is Copyright (C) 2013-2018 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/70646 title FreeBSD : gnutls -- denial of service (9065b930-3d8b-11e3-bd1a-e840f2096bd0) NASL family Fedora Local Security Checks NASL id FEDORA_2013-20052.NASL description New minor upstream release fixing a security issue. Adds ECC NIST Suite B curves support (ECDH, ECDSA) Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-03-17 modified 2013-10-29 plugin id 70671 published 2013-10-29 reporter This script is Copyright (C) 2013-2020 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/70671 title Fedora 19 : gnutls-3.1.15-1.fc19 (2013-20052) NASL family Fedora Local Security Checks NASL id FEDORA_2013-20662.NASL description Minor security update from upstream. New minor upstream release fixing a security issue. Adds ECC NIST Suite B curves support (ECDH, ECDSA) Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-03-17 modified 2013-11-11 plugin id 70832 published 2013-11-11 reporter This script is Copyright (C) 2013-2020 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/70832 title Fedora 20 : gnutls-3.1.16-1.fc20 (2013-20662)